@misc{indiciaee1db28389dde,
  title = {Geological Survey research 1964, chapter A},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1964},
  doi = {10.3133/pp501a},
  url = {https://pubs.usgs.gov/publication/pp501A},
  note = {Source identifier: pp501A}
}